• Zach Brown's avatar
    net: phy: leds: add support for led triggers on phy link state change · 2e0bc452
    Zach Brown authored
    Create an option CONFIG_LED_TRIGGER_PHY (default n), which will create a
    set of led triggers for each instantiated PHY device. There is one LED
    trigger per link-speed, per-phy.
    The triggers are registered during phy_attach and unregistered during
    phy_detach.
    
    This allows for a user to configure their system to allow a set of LEDs
    not controlled by the phy to represent link state changes on the phy.
    LEDS controlled by the phy are unaffected.
    
    For example, we have a board where some of the leds in the
    RJ45 socket are controlled by the phy, but others are not. Using the
    triggers provided by this patch the leds not controlled by the phy can
    be configured to show the current speed of the ethernet connection. The
    leds controlled by the phy are unaffected.
    Signed-off-by: default avatarJosh Cartwright <josh.cartwright@ni.com>
    Signed-off-by: default avatarNathan Sullivan <nathan.sullivan@ni.com>
    Signed-off-by: default avatarZach Brown <zach.brown@ni.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    2e0bc452
phy_led_triggers.c 3.53 KB